Speaker



FIG. 1 is a perspective view of a speaker showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a perspective view of a speaker showing my new design.

The broken line showing the environmental structure of the speaker and speaker holes, and the unshaded areas within FIGS. 1-7, are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a speaker, as shown and described. 